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1.
Chinese Journal of Pathology ; (12): 729-733, 2015.
Article in Chinese | WPRIM | ID: wpr-359030

ABSTRACT

<p><b>OBJECTIVE</b>To study the prevalence of IgG4-positive plasma cells in Rosai-Dorfman disease and to assess the association between Rosai-Dorfman disease and IgG4-related sclerosing disease (IgG4-SD).</p><p><b>METHODS</b>The clinicopathologic features of 12 tissue samples of Rosai-Dorfman disease (11 extranodal and one nodal) from nine patients were reviewed. The degree of fibrosis and occlusive phlebitis was studied by HE staining. The expression of IgG4 and IgG in plasma cells were studied by immunohistochemistry (EnVision) and quantitatively analyzed by medical image analysis system.</p><p><b>RESULTS</b>Nine tissue samples showed different degree of fibrosis (four tissue samples were mild, one tissue sample was moderate and four tissue samples were severe) and two tissue samples showed occlusive phlebitis in the lesional tissue. Immunohistochemical study showed marked infiltration by IgG4-positive plasma cells (> 50 per high-power field) in four tissue samples, moderate infiltration (30 to 50 per high-power field) in two tissue samples, mild (10 to 29 per high-power field) in three cases and negative infiltration (< 10 per high-power field) in three tissue samples (P < 0.01). Three tissue samples fulfilled the diagnostic criteria of IgG4-SD (> 50 IgG4-positive plasma cells per high-power field and IgG4-to-IgG ratio > 40%), including one tissue sample each of Rosai-Dorfman disease in the left facial skin, above the left eye socket, and in the right parotid.</p><p><b>CONCLUSIONS</b>Some cases of Rosai-Dorfman disease fulfill the diagnostic criteria and show the histologic features of IgG4-SD. They may represent members of the IgG4-SD spectrum. The detection of IgG4-positive plasma cells in the lesional tissues of Rosai-Dorfman disease may have clinical pathological significance.</p>


Subject(s)
Humans , Fibrosis , Histiocytosis, Sinus , Diagnosis , Allergy and Immunology , Immunoglobulin G , Chemistry , Immunohistochemistry , Phlebitis , Pathology , Plasma Cells , Chemistry
2.
China Oncology ; (12)2001.
Article in Chinese | WPRIM | ID: wpr-539465

ABSTRACT

Purpose: To investigate the expression of KAI1 protein and its clinicopathological significance in breast cancer. Methods: Immunohistochemical staining ( S-P method) was used to detect the expression of KAI1 protein in specimens from 107 breast cancer and 30 adjacent normal breast tissues. Results: KAI1 protein positive rate in breast cancer tissues is significantly lower than that of adjacent nomal breast( P 0. 05). Conclusions: These data suggest that in advanced breast cancer, KAI1 is down-regulated and decrease in KAI1 ecpression plays an important role in the malignant progression of breast cancer. Therefore, detection of KAI1 protein might be a potentially valuable indicator for staging human breast cancer and predicting prognosis.

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